A) 100 kilometers B) 62 miles C) 50 miles D) 80 kilometers
A) Thermosphere and exosphere B) Stratosphere and mesosphere C) Troposphere and stratosphere D) Mesosphere and thermosphere
A) 2005 B) 2014 C) 1960 D) 2018
A) Neil Armstrong B) Buzz Aldrin C) Yuri Gagarin D) John B. McKay
A) Two B) Five C) Four D) Three
A) 108 km B) 80 km C) 50 miles D) 90 km
A) Roscosmos B) European Space Agency C) United States Federal Aviation Administration D) International Astronautical Federation
A) When a spacecraft reaches space but cannot achieve orbit due to velocity B) When a spacecraft flies below 50 km C) When a spacecraft orbits Earth at 150 km D) When a spacecraft exceeds 200 kilometers
A) Oscar Sharp and Olivia Colman B) Isidoro Martínez and Nicolas Bérend C) John B. McKay and William H. Dana D) Jonathan McDowell and Thomas Gangale
A) Frictional heating causing structural failure of materials B) Excessive gravitational pull C) Radiation damage from the sun D) Lack of oxygen for the engines
A) 125 km B) 100 km C) 150 km D) 80 km
A) 80 km B) 100 km C) 125 km D) 150 km
A) 100–130 km B) 70–100 km C) 30–60 km D) 50–80 km
A) Federal Aviation Administration B) University of Nebraska-Lincoln C) Harvard-Smithsonian Center for Astrophysics D) International Astronautical Federation
A) 125 km B) 100 km C) 150 km D) 80 km
A) Russian government B) U.S. government C) French government D) British government
A) 303 km B) 80 km C) 113 km D) 250 km
A) 303 km B) 80 km C) 113 km D) 250 km
A) 80 km B) 303 km C) 113 km D) 250 km
A) Jonathan McDowell B) Oscar Sharp C) Thomas Gangale D) Isidoro Martínez
A) Joseph Albert Walker B) John B. McKay C) Olivia Colman D) William H. Dana
A) She studies atmospheric drag B) She becomes a NASA astronaut C) She builds a suborbital spacecraft D) She suddenly starts levitating into outer space
A) 50 km B) 150 km C) 80 km D) 100 km
A) William H. Dana B) Joseph Albert Walker C) John B. McKay D) Oscar Sharp
A) It stops instantly where the thermosphere begins. B) It terminates at a solid physical barrier. C) It progressively becomes less dense with altitude. D) It ends abruptly at the Kármán line.
A) Exact mathematical constants B) Technical considerations C) Constant atmospheric pressure D) International maritime laws
A) Magnetic repulsion force B) Centrifugal force (Kepler force) C) Gravitational pull from the Moon D) Electrostatic atmospheric suspension
A) 1959 B) 1956 C) 1969 D) 1945
A) A permanent boundary of zero gravity B) The maximum height achievable by rocket engines C) An inflection point where an aircraft's structure would fail D) The exact altitude where outer space officially begins
A) Yes, as a primary definition for flight limits. B) Yes, but only in the conclusion section. C) No, it never mentioned them. D) Yes, they were the main focus of the paper.
A) Wernher von Braun in 1958 B) Yuri Gagarin in 1961 C) Andrew G. Haley in a 1959 paper D) Theodore von Kármán in 1956
A) Wright Flyer B) Bell X-2 C) X-15 D) SR-71 Blackbird
A) It was approximately the altitude limit for an airbreathing jet engine based on existing technology. B) It was the maximum height parachutes could deploy. C) It was the absolute limit of human survival without a suit. D) It was the point where radio waves ceased to propagate.
A) It was the exact altitude where satellites could maintain a stable orbit. B) It was the maximum altitude for jet fuel combustion. C) It was the lowest altitude at which free-radical atomic oxygen occurred. D) It was the point where atmospheric pressure drops to zero.
A) FAI B) ESA C) NASA D) United Nations
A) Andrew G. Haley B) Yuri Gagarin C) Wernher von Braun D) Theodore von Kármán
A) A solid physical wall B) A rather gradual difference C) A complete vacuum D) A sudden and sharp cutoff
A) 1940s B) 1950s C) 1970s D) 1960s
A) Aeronautics B) Ballistics C) Astronautics D) Cosmonautics
A) Meteorology B) Aeronautics C) Astronautics D) Aviation
A) A temporary seasonal marker B) An absolute physical limit C) A randomly chosen number D) A mean or "median" measurement
A) The first chapter B) The final chapter C) The introduction D) An appendix
A) Yuri Gagarin B) Iven Carl Kincheloe Jr. C) Andrew G. Haley D) Theodore von Kármán
A) 38,500 m B) 12,000 m C) 91,440 m D) 100,000 m
A) 50 percent B) 2 percent C) 100 percent D) 98 percent
A) Zero percent B) 98 percent C) Two percent D) 50 percent
A) 91,440 m B) 10,000 m C) 150,000 m D) 38,500 m
A) Aerodynamic lift B) Magnetic force C) Inertia D) Air resistance
A) The United Nations B) No one C) Each country D) The pilot |